Time to talk about technology!
Sloppy reporting is NOT the same as deliberate propaganda.
So the problem isn't that they're lying, the problem is they're so totally incompetent at covering anything related to Trump because of their biases that we end up with the same effect, i.e. that I can't trust them.
This is not something Trump is doing to them, this is something they're doing to themselves. Trump screaming "fake news" wouldn't matter much if the news were impartial.